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Binaural interference: effects of temporal interferer fringe and interstimulus interval
Corrie R Camalier1, D Wesley Grantham2, Leslie R Bernstein3
1Department of Psychology, Vanderbilt University, Nashville, Tennessee 37240.
The Journal of the Acoustical Society of America
|September 20, 2014
Summary
Binaural interference, where a target sound
Area of Science:
- Auditory Neuroscience
- Psychoacoustics
Background:
- Binaural interference degrades target sound cues with remote interferers.
- Elevated detection thresholds for interaural temporal differences (ITDs) occur with spectrally remote interferers.
Purpose of the Study:
- Investigate temporal relations between target and interferer stimuli.
- Determine how temporal factors influence binaural interference.
Main Methods:
- Experiment 1 varied interferer onset/offset fringe durations relative to the target.
- Experiment 2 manipulated the interstimulus interval (ISI) between target presentations.
Main Results:
- Binaural interference decreased with longer total fringe durations.
- Interferer fringe composition (onset vs. offset) did not impact interference.
- Shorter ISIs increased overall thresholds but did not affect binaural interference.
Conclusions:
- Interferer temporal fringe duration significantly impacts binaural interference.
- ISI manipulations affect overall auditory thresholds independently of binaural interference mechanisms.
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